Improvement in wire-bending machines for bale-ties



3 sheets -sheetl. H. W. PUTNAM. WIRE BENIDING MACHINES 'FOR BALE-TIES.

,N.o. 178,027. Patented May 30,1876.

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I WIRE BENDIITG MACHINES FOR BALE-TIES. Y No.178 ,02'7, Patented May30,1826.

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WIRE BEITDING MACHINES FOR BALE-TIES. No.178,027. Patented May30, 1876.

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UNITED STATES PATENT. QFFIGE,

HENRY W. PUTNAM, OF BENNINGTON, VERMONT.

IMPROVEMENT IN WIRE-BENDING MACl-IINES FOR BALE-TIES.

Specification forming part of Letters Patent No. [78,027, dated May 30,1876, application filed i February 25, 1876.

To all'whom it may concern Be it known that I, HENRY W. PUTNAM, ofBennington, in the county of Bennington, and State of Vermont, haveinvented an Iniprovement in Wire Bending and Twisting Machinesfor'Making Bale-Ties, &c., of which the following is a specification:

The object of this invention is to bend a loop upon the end of a wire,and twist the wire together, to form one end of a bale-tie or similararticle; also, to bend a-loop, twist the wire,

' and bend up a hook in the loop of the Wire,

to form the other end of the bale-tie. Some portions of this machinemaybe used separately, but the object of the invention'is to cut off thewire at the proper length and form a complete tie at one operation, andwith this object in view the parts'of the machine are positionable toadapt it to various lengths of w1re.

In the drawing, Figure 1 is a plan of the machine complete. Fig. 2 is avertical section at the line or Fig. 3 is a section longitudinally ofthe twisting-dies. Fig. 4 is an elevation of the gearing that actuatesthe twisting-dies and Figs. 5, 6, and 7, are diagrams in larger size,illustrating the shape and operation of the dies that form part of theloop into a hook.

The actuating-shaft dis in the bearings a upon a bed, a and it is drivenby any suitable power. At one end there is a gear-wheel, b, andbevel-pinion b to the shaft of the roller b that feeds in the wire, andthis wheel b is without teeth in a portion of its face, so that the feedmotion may remain inactive during a portion of the other movements. Byleaving off a greater or less number of teeth, the movement of thefeed-rollers and the length of wire feed will be regulated. Theroller 1) presses upon the wire to carry it through the plate 0, whichforms one blade of the cutter, the moving blade 0 being drawn back by acam, 1,- upon the shaft a, to allow the wire to be run in the properdistance to a gage or otherwise; then the shear is movedcthe other wayby the cam, and cuts off the wire, and prevents the further movement ofthe wireuntil the shear draws back again. The wire is straightenedbefore entering this machine 5 and hence it is run through thenotches inthe wheels d that i are in line with it. These notches are beveled toallow the wire to pass easily, and there are two or more of theseguide-wheels 11 upon a shaft, 01 according to the length of the Wirethat is to be bent into loops at its ends; and I remark that the shaft ais to be of suflicient length to retain upon its ends the respectivegears that operate the twisting-jaws, so that the beds. f and f carryingthe respective bending and twisting devices, can be properly placedaccording to the length of the Wire to be operated upon, the cams uponthe shaft a. being moved to suitthe positions of the other parts. Thereis a ratchet-wheel, d upon the shaft al having as many teeth as thereare notches in the guide-wheels, and by means of the lever f and pawl 3,acted upon by the camel, the guide-wheel d, and the wires carried by it,are brought around to the bending and twisting jaws, and-then thefinished bale is delivered from the machine by the further movement ofthe guide-wheels, as another wire is brought to place for being'bent.

IH'FlgS. 8 and!) the loop and twisted end of the bale-wire arerepresented; and in Figs. 10 and 11,the loop, the hook, and the twistare shown.

I will first describe the means for. twisting the end to form the loop,Figs. 8 and 9. A jaw, h, is mounted at the end of a shaft, is, set inbearings 5 and 6. At the end of the shaft 70 is a pinion, k, gearing tothe wheel I, and the pinions 8 and 9 receive motion from the segmentalwheel m. There is a lock-lever, 02,

upon the fulcrum l0, acted upon by the cam 0, which lever n takes intothe proper teeth of the wheel l, to hold the same. This lever n isdisengaged by the cam 0 from the wheel I, when it is being revolved bythe segmental gearing. This lockinglever may operate with the teeth ofthe pinion, or with a notched disk upon the shaft is. Y

Upon the jaw h is a bending-arm, 7', upon a vertical shaft that passesthrough the jaw h, and is provided with a pinion, s, that is held by aspring-pawl, 12, that is attached at one cndto the under side of the jawh, and there is a lever, 1?, upon afulcrum, 13, that is acted upon bythe cam 14 upon the shaft a, and at the end of the lever is an inclineto lift the spring-pawl, and teeth to revolve the bending thebending-arm locked by the pawl 12 taking into the pinion s.

As the guide-wheels (1 bring the wire around it is laid upon the surfaceof the arm 1' againsta stud, u. The arm 1" is now made to describerather more than a half-circle, and the forked end 15 of this arm takesthe wire and carries its free end around the stud u, bending such uponthis the-two portions of the wire lie, and

the die 22 and lever 20 are brought down by the cam 16 to hold the bodyof the wire and the end as they lie side by side upon the rest 21. Thedie n is forked at the end so as to draw the Wires together, and thesurface of the die that presses upon the end of the wire should beroughened.

The teeth at the end of the lever 15 have now cleared the pinions, andsaid pinion and its arm are held by the spring-pawl 12. Thejaw h is nowrevolved by the gearing aforesaid, and the wires are twisted together toform the loop, as in Figs. 8 and 9, the twist being made between thefork at the end of the arm and the clamping-jaws v w.

The jaw h makes two or more complete revolutions, so that it is stoppedin a level po sition, where the pinion s is in a position to be actedupon by the teeth at the end of the lever t upon the return movementthereof. It is to be understood that the motion given to the lever t issufficient to carryit beyond the path in which the pinion moves when itis locked by the pawl 12, and revolves with the jaw h.

The arm 1 is turned back out of the way of v the twisted loop by thelever t, and the parts are again ready for another wire.

The stud u is not central over the shaft of the arm r, so that while thewire is being twisted the stud is toward the end of the loop, and whenthe arm r isswung back out of the way the stud u moves away from the endof the loop. sufficiently to liberate said loop.

The parts already described are to be used alone where a loop is to bebent only on one end of the wire, and if the wire was straightened andout off into lengths in a separate machine the cutting device would beleft out of this machine.

When the wire is to have a similar loop at the other end to that shownin Figs. 10 and 11, it is only necessary that the same parts as havealready been described be applied in reverse positions upon the bed fbut as this machine is especially intended to make the loop, Figs. 8 and9, at one end of the wire,

and the loop and hook, Figs. 10 and 11, at the other end of the wire, itis necessary to employ the same parts with the jaw it that have beendescribed in connection with the twisting-jaw h, and to add other partsto the same.

The Wire is laid upon the arm and swept around the stud u by the fork15, and the two parts of the wire are held by the rest '0 die '0 andlever 10, forming a holding-jaw, and I,

the wire is twisted by the jaw h being revolved by the gearing, asaforesaid, and after the jaw k has ceased to revolve, and the arm V hasbeen turned back out of the way, a forked bending-die, T is brought downby a lever, V and cam r, and the wires of the loop a short distance fromthe end of the twisted part are brought together by the forked end ofthe twisting-die, and carried down by such die bending the wire over theedge of the slide 22, between that and the. stationary die 23 in h.

The three-pronged die I is now brought down,

the two prongs 27 27 guide the bend of the hook, and the prong 28 entersthe loop, while the slide 22 is moved endwise, and after the entiremovement is given to the slide 22 the three-pronged die 1 receives astill further downward movement, so that the end of the hook is bentinto the form shown by the shoulders 29 pressing upon the upper surfaceof the slide 22 at each side of the wire, and cansing the rib at theunder side of the slide 22 to bend the curve of the hook. the curved endof the hook'is bent the second rib 30 upon the under side of the slide22 is unsupported, as seen inFig. 6; hence the said slide 22 is freetobe pushed down by the shoulders of the die 1 The three-pronged die isof one or more pieces, and is actuated by the lever i and cam 1 the cambeing shaped to give the aforesaid movements, and the slide 22 isactuated by the wedge Z upon the lever Z that is driven in between theend of the slide 22 and the bearing v The slide 22'is now drawn back asthe lever Z rises, there being a groove in the side of the wedgereceiving a pin upon the slide 22. The bender l is then again broughtdown by its cam and lever to press the twisted portion of the wiretoward the point of thehook, and close thehook slightly. This isimportant, for were it not done the hook would be too wide open to bindthe wire of the loop at the other end of the tie, as such loop is hookedinto it. The slide 22 as it drawsback drops down slightly to allow ofthis last bending operation, there being a pro-= jection, 30, that runsupon the bottom of the jaw h, and passes down an incline, as in Fig. 7,to allow of this movement.

- In twisting the wire at both ends simultaneously the wire is slightlyshortened. This draws the loops tightly and renders them uniform inshape; but, if necessary, springs may be used around the shafts 7c ofthe jaws h h, acting against collars upon the shafts, so that there maybe a slight endwise-yielding motion to the entire jaw, or the studs umay At the time be mounted so as to yield slightly as the wire istwisted. The springs return the parts to their proper positions afterthe wire has been relieved of strain upon the studs.

I do not claim the hook bent into the form shown in Figs. 10 and 11, toreceive the loop of the bale-tie, as this was made before my invention.7

It is to be understood that the end of the wire remains in the hole inthe plate a, and that the rollers cannot project the said wire throughthat hole until the blade 0 is moved back, and that the wire is cut offagainst the side of the hole when the cam 1 moves the blade forwardagain.

I claim-as my invention .1. In a machine for bending and twisting wire,the combination of a bending-arm, a stud around which the wire is bent,a holdingjaw, to retain the wire as the two parts lie side by side, anda revolving jaw that twists the wire together, substantially as setforth.

2. In the wire-bending maehine,.the bendingarm 1", with a forked end,15, for bending the wire and holding the two parts of such wire while itis being twisted,.in combination with the jaw h, and gearing forrevolving the same, toform the loop, substantially as set forth.

3. In the wire-twisting machine, the stud it upon the arm i placedeccentric to the shaft upon which the arm swings, relieving the strainupon the loop as the arm swings, in combination with gearing for turningsuch arm thereby back from the twisted loop, as set forth.

4.. The combination, with the arm 1*, of the pinion s, spring-pawl 12,actuating-lever t, and jaw k, substantially as set forth.

5. The shear c and feeding-rollers b 12 in combination with thesegmental gearing b, and the holding and twisting jaws, and gearingconnecting the parts, substantially as specified, to feed, cut off, andtwist the wire, as set forth.

6. The notched guide-wheels d, moved progressively by a ratchet andpawl, in combination with the bending and twisting jaws, substantiallyas specified, for bending the loop and twisting the wire.

7. The combination, in a wire-bending machine, of the guide-wheelsd,-for carrying the wire, with two sets of bending and twisting jaws forsimultaneously bending both ends of the wire, and then twisting the wiretogether, as set forth.

8. The die 22, in combination with the bending-die 1' die 23, andloop-forming mechanism, to bend such loop into a hook after it has beentwisted, as set forth.

9. The three-pronged die P, in combination with the sliding die 22 andactuating mechanism, substantially as set forth.

10. The wedge i and its actuating-lever l", in combination with thesliding die 22, dies 23 and Z substantially as set forth.

11. The combination, with the sliding die 22 and stationary die 23, ofthe die 1 and shoulders 29, that press the die 22 downward to form thecurved end of the hook, as set forth.

12. The sliding die 22, with the projection 30, to allow the same todrop after it is drawn back, in combination with the dies Z and 23, andbender N, that press the twisted wire to ward the point of the hook, asset forth.

13. The combination, with the revolving jaw h and mechanism for twistingthe wire, of a stop to hold the twisting-jaw in the position of rest,substantially, as set forth.

14. The bending-die 1, made as a fork at the end, to draw the wires ofthe loop together and bend the same, in combination with the dies thatbend the wire into the hook, substantially as set forth.

15. The holding-die 22 made as a fork, to draw the parts of the wiretogether, in combination with the stationary rest '0, substantially asset forth.

16. In a wire-bending machine, the combination of two bending andtwisting jaws with their actuating devices and adjustable beds foradapting the machine to different lengths of wires, and simultaneouslyoperating at both ends of wires, as set forth.

Signed by me this 12th day of February A.

HENRY W. PUTNAM. Witnesses:

GEO. T. PINCKNEY, CHAS. H. SMITH.

